Fischer, Susan; Gong, Qunhu (2010). Variation in East Asian Sign Language Structures. У Brentari, Diane (ред.). Sign Languages(англ.). Cambridge University Press. с. 501. ISBN978-1-139-48739-9.
Yeh, Yu-ching; Ho, Hsiang-ju; Chen, Ming-chung (2015). Learning Vietnamese as a Heritage Language in Taiwan. Journal of Multilingual and Multicultural Development(англ.). 36 (3): 255—265. doi:10.1080/01434632.2014.912284. S2CID143320658.
Yeh, Yu-ching; Ho, Hsiang-ju; Chen, Ming-chung (2015). Learning Vietnamese as a Heritage Language in Taiwan. Journal of Multilingual and Multicultural Development(англ.). 36 (3): 255—265. doi:10.1080/01434632.2014.912284. S2CID143320658.